Digital's Pathworks Mosaic web browser is an old favorite of mine. It
came bundled with the PATHWORKS networking client for DOS/Windows 3.1.
It was fairly obscure back in the day. 1.0 was a heavily modified version
of the Mosaic browser, and version 2 was just a slightly rebranded later
version of Mosaic.

It is a 32-bit application that will run under Windows 3.1 with Win32s
installed, any later version of Windows, Wine, or ReactOS.

Today, pretty much the only site it can load is the resurrected http://home.mcom.com/
due to newer default text encoding used on modern web servers.

That reminds me, back in the day Digital ran the #1 search engine: altavista.digital.com!
And for a time AltaVista specifically recognized Pathworks Mosaic 1.0 and
served up a simplified page when visited with it.

For some dumb reason all of the Digital/DEC pages have been removed
from the Internet Archive. It is almost as if Digital never existed.

They also had their own CPU (The DEC Alpha), their own line of PCs (The
DECPc), their own Networking software (PATHWORKS/DECnet), and their own
OSes (VMS/Ultrix/Digital True64 Unix).